His name doesn't appear in the show's iconic credits, but Norm MacDonald played a pivotal role in building the world of "Mad Men."

The show's creator Matthew Weiner reached out to MacDonald to provide apt visual cues that would follow Jon Hamm's Don Draper home from his Madison Avenue office to his Ossining residence, on the fictional Bullet Park Road.

"They wanted to know a lot of the background of Ossining, historical background and things that happened in the '60s," says MacDonald, curator and former president of Ossining's historical society.

"John Cheever wrote about the suburbs back in the 1960s. That's why they focused on Ossining, because John Cheever had lived here," he continues, noting that the name of the street where the Drapers lived is a nod to a Cheever novel, "Bullet Park."

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“I felt like I was a little part of this show, just a very remote part,” says Norm MacDonald, who consulted on “Mad Men” to ensure historical accuracy.(Photo11: Michael Nelson/For The Journal News)

Weiner had an exhaustive attention to detail, MacDonald says. Weiner asked about minute details like the type of paneling on the courthouse's walls in the early '60s and the color of the street signs.

"Matthew Weiner was a stickler for being precise and having things exactly the way they were," MacDonald says. "They wanted to check on streets, on houses, real estate prices. There were many, many questions."

MacDonald estimates the show's staff called him to consult about 150 times over the course of several years.

"So I suggested to them that they look at our newspaper files, which we had on microfilm." To help with the research, MacDonald pulled three years' worth of the town's archived newspaper, The Citizen Register (a precursor to The Journal News), and shipped them to the show's Los Angeles headquarters.

Ironically, while MacDonald has helped the creative team make countless decisions throughout the show's run, he's never seen a full episode, though he says his colleagues "watch the show religiously" and fill him in on all of the local references.

"Then they wanted to know what questions (the 'Mad Men' staff) were asking me so they could try to find out what was going to happen on the show," MacDonald says.

He's happy with the attention the town has gotten due to the show, saying "it was a very good thing for Ossining," and he's not the only one pleased with the exposure.

Ossining Mayor Victoria Gearity.(Photo11: CONTRIBUTED)

"It's been delightful to have Ossining become known more widely because of 'Mad Men,' " says Victoria Gearity, the village's mayor. "Present-day Ossining is still home to many commuters who enjoy the gorgeous express train ride along the Hudson into Grand Central."

Ossining's former mayor, Miguel Hernandez, who organized a bus tour of sites featured on the show for the town's 2013 bicentennial, is sad to see the show end.

"Ossining is sort of ... neglected and everything you read about Ossining is about (Sing Sing Correctional Facility)," he says. "So I thought this put Ossining on a different level. I'm sorry that it's over."

The calls to MacDonald grew less frequent in recent years after the show's central characters moved out of town. The most recent call came last year, but MacDonald says the creative team was always grateful for his expertise.

"Every once in a while they would say, 'We want you to know that all this information is very much appreciated and Matthew Weiner wants to thank you for it,' " MacDonald recalls. "So I felt like I was a little part of this show, just a very remote part."

Throughout its seven-season run, local fans were able to do a lot of name-checking, thanks to the diligent research by the show's creator, Matthew Weiner, and his team, who consulted Ossining historian Norm MacDonald.

Here are a few recognizable references:

•Brookside School: The real-life school, at 30 Ryder Road, is mentioned in several episodes, including one in which Sally's teacher, Miss Farrell, calls in the Drapers to talk about their daughter's behavior in class.

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The Indian Point nuclear power plant in Buchanan, as seen from across the Hudson River in Tomkins Cove in 2013.(Photo11: Peter Carr/The Journal News)

•Indian Point: The Sterling Cooper creative team pitches a campaign for the nuclear plant, opened in 1962, that includes a cartoon turtle mascot.

•The A&P: Located in the Chilmark Shopping Center, Betty's father, Gene, collapses here and dies from a heart attack.

•Carvel: Don bribes his kids to go antiquing in Tarrytown with a stop for soft-serve in Elmsford.

•Rye & Playland: Henry Francis complains to Betty that he spent so much time with his daughter in Rye, he "probably paid for a building in Playland." By the end of season four, he and Betty are married and living in Rye.